What sizes do chimney caps come in?

With masonry (at least here in the Kansas City Metro) the common sizes are 8 by 8, 8 by 13, 13 by 13, 8 by 17, and 13 by 17. Now they do make one size caps that fit all but they do not work properly, they’re a poor fit. My suggestion: get someone at the top of your chimney that knows how to measure for chimney caps.

What is a multi flue chimney cap?

Multi-Flue Chimney Caps. Multi-flue chimney caps accommodate single or multiple flues in one chimney structure. Multi-flue chimney caps are available in stainless steel or copper. Great for protecting the chimney crown and when installing two or more single flue caps next to each other isn’t feasible.

Is a chimney cap required by code?

The answer is yes, chimney caps are necessary because manufacturers of relining materials do require them as part of a complete installation. Not installing a chimney cap will void any warranty you have on the pipe.

How high should chimney cap be above flue?

5”
A properly sized chimney cap should not interfere with draft. Draft is that which controls how well smoke is drawn up and out of your chimney. The lid of the cap should be at least 5” above the top of the any flue tiles it is covering. Having more clearance than 5” is a good idea.

What is the standard chimney flue size?

As a general rule, the diameter of the chimney should match the flue collar on your wood stove. A 6-inch stove requires a 6-inch flue. In most cases, a step up is also fine. For example, you could vent a 6-inch stove into an insulated chimney that is 8 inches in diameter.

Does a capped chimney need to be vented?

Does a Capped Chimney Need to Be Vented? A chimney needs a vent, not just at the top (provided by the cap) but also at the bottom. When you brick up the fireplace you need to fit either an air brick or a plastic/metal vent to allow air flow through the stack.

How much does it cost to cap a chimney?

Chimney Cap Installation Cost Installing a chimney cap costs $300 on average, ranging from $75 to $1,000. The cap runs $35 to $550 depending on material and size. In most cases, you’ll pay $100 to $200 for installation.

What is a chimney flashing?

Chimney flashing is a type of roof flashing that creates a waterproof seal to protect your chimney and roof from water damage and penetration. Counter or cap flashing is also an L-shaped metal piece, but it is designed to cover the step flashing and embedded into a groove cut in the chimney brickwork.

What is the minimum height for a chimney?

4.5 m
The minimum chimney height recommended for minimum performance of wood burning and multi fuel appliances is 4.5 m from the top of the appliance to the top of the chimney. It is best to position the chimney, so that it goes straight up as near to the roof ridge as possible.

How far out does a fireplace hearth need to be?

So how far should a fireplace hearth come out? InterNACHI recommends that for fireplaces that have an opening of 6 square feet (0.56 square meters) or smaller, a hearth should extend at least 16 inches (406mm) out into the room from the opening, and by at least 8 inches (203mm) away from the sides.

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